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fortran openmp share|improve this question asked Nov 7 '12 at 6:27 xslittlegrass 4932923 add a comment| 2 Answers 2 active oldest votes up vote 12 down vote accepted The most probable Over time the leaked objects consume all of the available Java heap space and trigger the already familiar java.lang.OutOfMemoryError: Java heap space error. I can confirm with readelf that none of the executables nor shared libraries have dependencies on libgomp.so.1 except for liboctinterp.so now. But we could try to locate them. have a peek here

I only want to disable pruning for this one particular library so I used This fixes things in the test program. Then the other problem was that in addition to Array-d.cc (where Array is explicitly instantiated) we were also getting implicit instantiations in ov-classdef.cc and Array-tc.cc. I've been finding cases to work on by using nm on all object files and looking for multiple instances of "guard variable for ..." that have the same variable name. Any clues about how to debug this problem would be most welcome. Get More Information

After doing some more testing, I think the following are true: If you have something like the following function defined in a header file that is included in multiple source files, Guessing that the problem is that NR is not exported, I tried the following change and Octave still crashed on exit, though in a slightly different location. When the number of users or the volume of data suddenly spikes and crosses that expected threshold, the operation which functioned normally before the spike ceases to operate and triggers the With the instrumented Octave I ran 'test XXX.cc; exit' individually for each of the .cc files in dldfcn.

As I understand it, these are the compiler generated global variables that track whether a static variable is initialized. Mein KontoSucheMapsYouTubePlayNewsGmailDriveKalenderGoogle+ÜbersetzerFotosMehrShoppingWalletDocsBooksBloggerKontakteHangoutsNoch mehr von GoogleAnmeldenAusgeblendete FelderNach Gruppen oder Nachrichten suchen {{offlineMessage}} Store Store home Devices Microsoft Surface PCs & tablets Xbox Virtual reality Accessories Windows phone Software Office Windows Additional software How are you running the test suite? Openmp Set Stack Size If that is the case then I can hack, really hack, a workaround which avoids dlclose if the library is GraphicsMagick.

The memory leak size seems to be pretty static which is a good thing. We can always wait until then to see if pulling down newer libraries makes a difference. 3) There still seems to be something dodgy with oct-shlib. The disadvantage is that it moves the static variable outside of the function, and (with current C++ rules) it must be initialized separately. Eaton Fri Apr 8 17:08:50 2016, comment #109:@Avinoam: I do two things slightly differently in my MXE build.

Omp Stack Size

Next, you need to figure out where in your source code the potentially hazardous large amount of objects is being allocated. https://plumbr.eu/outofmemoryerror/java-heap-space This value does not affect the stack size of the main thread. Omp: Error #34: System Unable To Allocate Necessary Resources For Omp Thread: Permgen space What is causing it? Omp_stacksize You can leave it here.

Are you directly starting Octave and entering commands? ./run-octave -f --no-gui __run_test_suite__ exit I wasn't overly concerned about the remaining leaks in various parts of the Qt libs because they don't Rik Thu Mar 24 15:26:57 2016, comment #23:@Hartmut: I'm also voting for testing the patch with the dev branch. While the correct thing may be to go over to the GraphicsMagick code and start hunting there, I don't have the energy or time to learn someone else's code tree. Check This Out In any case, I tried the above and it doesn't help with the memory leaks.

If you want to support many threads, staying with 32-bit software won't make sense. Omp_stacksize Example Rik Thu Mar 24 17:07:22 2016, comment #27:I'm using GraphicsMagick, not ImageMagick. My answer is Unix-specific.

Here are the full details: All tests are done under Windows 7.

Generated Sat, 22 Oct 2016 01:55:54 GMT by s_ac4 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.10/ Connection To start with my personal highlight: Even with the 4.0.1 release (official Windows installer) I get a difference between using octave.exe and octave-gui.exe! I used two different tests: test "A" means "test imread, clear all, test imread" test "B" means "test imread, exit" I have tried three different ways to start Octave: using bin/octave.exe Openmp Segmentation Fault (core Dumped) We have covered this activity in a separate post here.

I don't think we explicitly add that library to the link flags. heap-arrays compile switch is not good in combination with /Qopenmp.

Hello, I am using a 32 bit version of my code on a 64 bit machine. Eaton Thu Mar 24 19:12:20 2016, comment #33:Do either of the attached patches avoid the problem for you? (file#36754, file#36755) John W. I have also used GraphicsMagick with quantum-depth=16, and not 8.

Rik Thu Mar 24 12:35:49 2016, comment #22: @Hartmut (comment#16) I have tested the patch from comment#12 under Windows, with Octave version from the development branch (not the stable) I Since e_in is private to each OpenMP thread, one copy per thread is allocated on the thread stack (even if you have specified -heap-arrays!). 202000 elements of REAL(KIND=8) take 1616 kB I suspect this is because some information is cached about each class in the JNI interface. As of 4/3/16 this now leaves just two leaks sources: classdef code (for example: inputParser.m) Java JVM code (for example: javachk.m) Rik Sun Apr 3 15:59:23 2016, comment #79:I have

I don't know whether it is on the GraphicsMagick side, or on our side, but here are some examples of this going badly: http://www.codeproject.com/Articles/13964/Static-variables-in-shared-libraries http://stackoverflow.com/questions/2631918/main-program-and-shared-library-initializes-same-static-variable-in-static-ini http://compgroups.net/comp.lang.c++.moderated/global-static-destructors-called-when/363808 Rik Thu Mar 24 In F__magick_formats__, we have if (! After that, 'make maintainer-clean" followed by bootstrap, configure, make cycle. A few will be easy to find because they follow a similar pattern to this.

It's the dlclose that results in a segfault. 5) The summary of open issues from 3/13 remains the same for me. Search in Projects People Cookbook Support Bugs Tasks Patches Hosted Projects Register New Project Full List Contributors Wanted Statistics Site Help User Docs: Cookbook User Docs: In Depth Guide Get This thread also looked germane: http://stackoverflow.com/questions/19373061/what-happens-to-global-and-static-variables-in-a-shared-library-when-it-is-dynam. In that case, you should just allocate more heap - see at the end of this chapter for how to achieve that.

Eaton Fri Apr 8 16:05:35 2016, comment #107:Avinoam: I don't see anything wrong with the way you are rebuilding Octave. Rik Mon Apr 4 16:03:01 2016, comment #83:I spoke too soon. I did some tracing, and for this demo, both branches of the statement are executed and it looks to me like the calls to vertex3 are correctly inside calls to glBegin